这是哪儿错了

错误：Attempt to invoke virtual method 'org.jsoup.select.Elements org.jsoup.nodes.Element.select(java.lang.String)' on a null object reference 错误码：Attempt to invoke virtual method 'org.jsoup.select.Elements org.jsoup.nodes.Element.select(java.lang.String)' on a null object reference 描述：Attempt to invoke virtual method 'org.jsoup.select.Elements org.jsoup.nodes.Element.select(java.lang.String)' on a null object reference 堆栈：java.lang.NullPointerException: Attempt to invoke virtual method 'org.jsoup.select.Elements org.jsoup.nodes.Element.select(java.lang.String)' on a null object reference at com.example.hikerview.service.parser.CommonParser.getTrueElement(CommonParser.java:70) at com.example.hikerview.service.parser.LazyRuleParser$1.lambda$onSuccess$2(LazyRuleParser.java:66) at com.example.hikerview.service.parser.-$$Lambda$LazyRuleParser$1$w2EN1hxtHzlEjS44d73FXIv6MdI.run(Unknown Source:10) at java.util.concurrent.ThreadPoolExecutor.processTask(ThreadPoolExecutor.java:1187) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) at java.lang.Thread.run(Thread.java:784)